Interlocking swinging sash and casement and lock therefor



G. W. LANCASTER.

-INTERLOCKING'SWINGING sAsH AND CASEMENT AND LocK THEREFOR. APPLICATION FILED lAN.5. 192].

G. w. LANCASTER.

INTERLOCKING SWINGING SASH AND CASEMENT. AND LOCK THEREFOR.

APPLICATION HLED 1AN.'5, 192x.

Patented 'May 16, 1922.

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encuen w. LANCASTER, or RICHMOND, Waerme, assieNon To Panni-:smb wINnow COMPANY, (inc oaronarnnior nier-inclini, VIRGINIA'.

iNr'EaLooirNs sivINeiNe seen .ann `casar/Liner AND nocif; THEREFOR,

Application filed January 5,192.1. Serial No. 435,234. i

To all 107mm t 'may concern.'

Be it known that (incassi/V. LANCASTER,

a citizen of the United States of America, residing at Richmond, vcounty of Henrico, and State of Virginia, has invented a new and useful interlocking Swinging Sash and Casement and Lock Therefor, of which the following is a specification.

The invention has for its purpose the provision of an interlocking swinging sash and Casement and lock therefor, wherein a plurality of counterbalancing auxiliary sashes are employed, and another purpose is to provide a construction, which is simple, and practical in construction.

In a copending application in the name of George W. Lancaster iiled February 20, 1920, Serial No. 360,151, a swinging sash and easement are employed. In such construction, as result of practical installation, it has been found that the swinging sash does not close tight enough in order to preclude all the air or wind. l

v Furthermore in a `construction as embodied in said application, the locking means for the swinging sash is not as secure, as has been found necessary. For instance an operator is very, apt notte move the locking means its fullest extent forthe purpose of locking the swinging sash. Furthermore when the locking means is moved to an op erated position and the sash swung open, the

operator, when again closing the sash may find the locking means in a locked position with the swinging sash in an opened position, therefore when the operator attempts to again close the sash, the combination locking means and weather strip is very apt to contact with theA sill of the easement, thereby not only preventing the swinging 'sash from being` closedr` but distorting the combination locking` means and weather strip. at a point adjacent the hinge of the sash,

Therefore, still another purpose is to provide a construction of interlocking swinging sashand easement and lock therefor, whereby the above disadvantages are overcome.

ifoirexample it is al further purpose to provide a swinging sash having interlocking flange connections with the easement, in such a manner as to preclude the air and wind entering the room at the joint between the swinging sash and the easement.

A; still further purpose is to provide means for locking the combined locking device and weather strip in locked or unlocked position 'relatively to the easement, so .that when an operator closes the swinging sash, it willbe `found necessary to unlock the looking means from its unlocked position, in order to insure that the operator will lock the swingy ing sash, after itis completely closed, there- `by preventing the combined locking member and weather strip from *abutting with@ the sill, which 4will distort said vweather strip,`

and when the swinging sashv'is opened, the combined locking member'and weather strip maybe locked in anvk unlocked position, By

erable, it is obvious that asa result of a reduction of the invention to a more practical form for-commercial purposes, the invention may be susceptible of changes, and theyright to these changes` is claimed, provided they arek comprehended within the scope of what is claimed. n

The invention comprises rfurther features and combination of parts, as will be hereinafter set forth, shown in thedrawings and claimed. y

- In the drawings Figure l is a verticall sectional view through a window.y wherein a Casement is employed vasythe window frame showin-g a swinging sash containing a plurality of auX- iliary counterbalancing sashes, with means for adjusting oneof the sashes, relatively to slides. i

Figure 2 is a view in eleva-tion of the swinging sash, vshowing the combination locking member and we'a-therstrip as applied.

yFigure 3 is a horizontal sectional viewon line `33 of Figui-e i, showing--thenter1oek ing connections'between the swinging sash and easement, and also illustrating thelco'nbined locking member and weather strip, with means for ,locking .the strip in locked orunl'ocked positions. y. n

Figure a is an enlarged detail vlew 1n 'elevation of the lower 'right hand corner of the swinging. sash shown in Figure 2, with the sash in section, showing the locking `closed in said copending application.

weather strip moved to an unlocked position and the means for holding it in such position.

Figure is an edge elevation of Figure 4:.

Referring .to the drawings, l vdesignates a wall of a building having an opening 2, in which the window frame or easement 3 is mounted. This easement may be f any suitable shape preferably angular in cross section as shown, and the inner and lower walls thereof having lateral flanges 4t which are engaged in the wall. to hold the window frame or easement in place. This easement maybe made up in any manner found convenient, preferably in the manner as dis- For instance the easement or window frame may be made in sections, and the sections rspot welded (not shown). The easement or window frame has a shoulder 5 at the top, and shoulders 6 and 7 atthe sides. Shoulders of this character are eliminated at the sill of the frame or easement, with the eX- ception of a shoulder 8 facing outwardly. The easement at the top and bottom and at one side is bent or constructed to provide a channel 9, while the other side of the casement or frame has a rabbet 10.

A dominant window sash 11 engages the opening in the frame or easement, and ris hingedly mounted on the easement as at 12, whereby the dominant sash may swing inwardly of the room. The shoulders 6 and 7 .atthe opposite sides of the easement or window frame constitute walls of opposite channels 18 and 14. The side of the casement or window frame adjacent the hinge side of the dominant sash is provided with a vertical channel 15 between the rabbet 10 and the channel 13.

The window frame or easement may be constructed of any suitable sheet metal preferably steel or any gauge found convenient for the purpose, while the dominant sash may be constructed of similar material. Thisdominant sash may consist of side, top` and bottom rails. which may be put together by spot welding in a manner similar to the construction of the easement or window frame, as disclosed in said eopending application.

The dominant sash is rectangular in cross section, and it will be noted that the outer wall 16 of the dominant swinging sash on three of its sides. namely the top, bottom and the free side terminates in a marginal flange 17, which engages the channel 9, which'is formed in the inner wall of the easement or window frame at its top and bottom and one of its sides,- so that when the dominant sash is closed, the flange 17 will fit tightv and preclude the air or wind from entering the room.

The hinge side of the dominant sash between the inner and outerl ywalls is provided with a vertical angle strip 18, which is fastened, preferably by spot welding to the wall of the swinging dominant sash. and is designed to enter the channel 15 when the dominant swinging sash is closed, therehj,y assisting materially with the interengagement of the outer wall oi' the dominant swinging sash with the channel 13 to preclude the air or wind.

Tn order to insure liolding` the dominant swinging sash closed, and also to assist in. precluding the air or wind. a combined locking member and weather strip 1D is mounted adjacent the outer wall of the dominant sash at the bottom and one side thereof. This combined locking member and weather strip is in the form of a right angle, and is provided with arcuate slots 20, which are engaged by the guide pins 21, so as to mount the strip and guide the same for the purpose intended. ,Vhen the swinging dominant sash is closed, it is the aim to move this combined locking member and weather strip, for the purpose of locking the sash, and at the same time to assist materially in precluding the weather. Tn order to accomplish this the vertical arm of the right angle weather strip engages the channel 11i against the shoulder 22, whereas the lower horizontal arm 23 engages the shoulder 8, which is slightly inclined dmvnwardly and outwardly, sothat the arm 2S will cam thereon and draw the dominant sash in position tightly. Tn other words by this means the lower part of the ange 1'2" will be drawn tightly into the lower part of the channel 9. The intcrengagement of the lower arm 23 of the right angle weather strip will also tend to draw the vertical free portion of the dominant sash closely in position in engage-- ment with the jamb of the window frame or easement.

ln order to hold the combined locking member and weather strip in a locked positionl a pin 2-1- is mounted in a guide opening of the inner wall of the dominant swinging sash. The pin also mounted in the c arm 91'?, which c of the domiis in eurpin 1 amd is interposed between a should 30 and the wall of the sash. Tt will be noted that the action of i2 the spring holds the end 31 of the pin in contact with the inner surface of the outer wall of the dominant sash normally. The pin 2Lihas a head 32, which is positioned..adjacent the inner wall of the dominant sash. i Vhen the combined locking member and weather strip is in a locked position, as shown in Figure 2, the end of the pin 24: engages one edge of the right angle locking member and weather strip and holds the vertical arm thereof in the channel 14, the wall 22 of which is inclined or bevelled, so that the weather strip may cam thereon and draw the window sash tightly in place. vlllhen the combined locking member and weather strip is unlocked, the end 31 of the pin 24 may engage the opposite edge of the vertical arm of the weather strip, as shown in Figure 4, so as to hold the weather strip in an unlocked position, thereby preventing` the weather strip from contacting with the front 8 ol' the sill when the operator is attempting to close the sash.

llhe combined locking member and weather strip has pivoted thereto, as at 34, an arm 35,

and which is mounted von a rotating' pin 36, which is mounted in bearings 37 oie the inner and outer walls of the dominant swing ing sash. The inner end of the pin 36 has a transverse pin, by which the pin 36 may be rotated; 1t is obvious that owing` to the arm and its connection with the strip, the pin will impart movement to the combined locking member and weather strip, in order to move it to locked or unlocked position. 1t

will be noted that the locking); pin 24 is di` rectlj,7 under the pin 36, though it is obvious that it may be above. By means of this construction, it is assured that an operator will not be very apt to am the lower horizontal arm of the weather strip against the inner lower portion of the casing'.

The opposing walls of the dominant sash have mounted vthereon channel guides 38, which are iii-sections 39 and 40, the sections 39 constituting the upper stationary parts of the channel `guides, while the sections 40 constitute the lower removable channel guides. 1t will be noted that these guides are mounted on opposite sides of the sash` though only one side is shown inv Figure l, whereas in Figure 2 the opposite? sides are shown. The lower sections of channel guides are removable, due to the :tact that they are secured in plaee'by means ot' the screws 4l, which pass through the walls of the sash and are threaded into the heavy metallic strips 42, which are secured in an;7 suitable manner preferably by spot welding, to the inner surface of the opposite walls of the sash, These heavy metallic strips are provided for the purpose of insuring a backing for the screws', since it the screws were simply threaded through the sheet metal there would not be sufcient gripping? surface for the threads of the screws. The joint between thek upper and lower sections of channel guides is indicated at 43, By rendering` the lower sections oi channel guides removable` it is possible to remove the auxiliary sashes. Mounted in the channel guides 38 are upper outermost and lowermost inner and intermediate auxiliary sashes provided with interlocking flanges 44, which act to preclude the air or wind from, enteringthe interior of the room. The upper outermostauxiliary sash 44av when in its normal position engages the transversebar or strip 45, in order to assist in precludine` the air or wind.

Engaging two of the channel guides 30, namely those nearest the interior of the room and reaching` overv the intermediate walls between such two channel guides, are slides 46 having channels 47, in which the lower innermost auxiliary sash is mounted and guided. The intermediate channel olI each slide which straddles the adjacent flanges of the channel guides has one or its walls provided with arms or lugs 48. The upper arm or lug 48 is longer than the lower arms or lugs 4S, and preferably lits the space between one wall of the slides and the opposite wall of the innermost channel guide.v A transverse bar 49 is designed to engage under any two opposite lugs or arms 48, for the purpose of raising the slides, and when raising the slides to raise the lower innermost auxiliary sash. ll/lounted in bearings on the interior of the upper part of the dominant sash are pulleys 50 and 51. Passing over the pulleys 50 is a sash cord 52, which is connected at 53 to the outer uppermost auxiliary sash, and is in turn connected to the transverse bar 49. lt will be noted that when the upper outermost sash is low ered, the bar 49 is raised, and when raised, the inner lowermostv auxiliary sash may or may not be raised, it depending,` entirely upon whether the slide is moved or not. Passing' over the pulley 51 is a sash cord 54, which has its opposite ends connected at to the upper parts ot the intermediate auxiliary sashes and 55". The intermediate sashes counterbalance each other, it being obvious that shouldvthe. lower intermediate sash he raised, the upper intermediate sash is lowered and vice versa. The opposite slides 46 have their lower ends connected by'means of a transverse bar 56, with which the lower portion of the lower innermost auxiliary sash 44h engages, in order to preclude the air or wind. The lower ends of the channels 47 ol: the opposite slides are closed by means of the end pieces 57, so that when the slides raised, the lowerinnermost auxiliary sash may be likewise raised, similar to the idea disclosed in the copendinej application filed the 5th day of January, 1921, the name of George lll. Lancaster, Serial No.

The sash cords or tablesmay be constructed of any suitable material.v either rope, chain. or suitable metallic lcable material, or in -fact any material, which will not necessarily bind or buckle. Furthermore suitable lubricant or Agraphite may be applied to the sash cords or cables, or chains, or upon the pulleys engaged hy the cords., or it desired thecords, chains or the like may pass through holders (not shown), which may contain the lubricant or graphite or other material.

"While the drawings show the glasses clamped in the channels of the auxiliary sashes, with the metal of the material in direct contact with the glasses, it is obvious that any suitable material may be used in the channels of the sa shes, so that the glasses may lit closely and tightly therein, and in such a manner as to preclude the air or wind. ln constructing these sashes with the glasses therein, putty or similar material has been used, and while there has been considerable success with this kind of material, considerable success and advantages have been attained by the use of asbestos, either in a pliable moist state, or in a dry form. In fact any form oi' asbestos has been found more preferable in joints. in order to preclude the air or wind. Furthermore such material is very essential due to its iire prooi properties. Asbestos in any form is not only preferable inthe channels of the auxiliary sashes for the glasses, but may also be used between the overlapping joints 44, as well as in the channels 9, and any similar parts. In fact asbestos may be used where the casement engages in the wall, as at 4.

Also it is to be noted that the easement and the channels carried by the opposite sides ot the swinging dominant sash may be constructed in any suitable manner, preferably by a rolling process. ln fact the ehannels constituting guides for the auxiliary sashes may be constructed fromsheet metal, rolled from one piece in order to form the guides. Also the dominant swinging sash may be constructed of rolled sheet material.

The invention having been set forth, what is claimed is l. ln a window construction, a window easement, a swinging closure hingedly mounted therein, the wall of the easement having channels, the inner wall of the swinging closure having` marginal tlau ges to engage said channels, and means YFor lool'- ing the closure and drawing the marginal flanges into interlockingv engagement with the channel to insure precluding the air or wind.

Q ln a window construct-ion, window easement, a swinging closure hingedly mounted the-rein., the wall oi the easement havingchannels, the inner wall of the swing'- ing closure having marginal lianges to enn gage said channels, and means for locking the closure and drawing the marginal lianges into interlocking engagement with the channel to insure precluding the air or wind, and means for locking the locking means in locked or unlocked position.

3. ln a window construction, a window easement having channels adjacent its inner and outer portions, a closure hingedly mounted in the opening of the easement and Leiche? having marginal langes to interlock in said channels, a combined locking member and weather strip carried by the closure and having a locking and camming engagement with certain of the inner channels for drawing the closure into an interlocked tight engagement with the easement, and manual means lor moving the weather strip to a locked or unlocked position.

l. ln a window construction, a window easement having channels adjacent its inner and outer portions, a closure hingedly mounted in the opening of the easement and having marginal flanges to interlock in said channels, a combined locking member and weather strip carried by the closure and having a locking and camming engagement with certain of the inner channels for drawing the closure into an interloeked tight engagement with the easement, and manual means for moving the weather strip. to a locked or unlocked position, said means comprising an opening formed in one arm of the weather strip, a rotating rod mounted in bearings oli the closure, and a cam carried 'by the rod engaging said opening for moving the weather strip te a locked or unlocked position.

5. ln a window construction, a window :aseinent having channels adjacent its .inner and outer portions, a closure hingedly mounted in the opening of the easement and having marginal Hanges to interlock in said channels, a combined. locking member and weather strip carried by the-closure and having a locking and eamming engagement with certain oli the inner channels for drawingthe closure into an interlocked tight engagement with the easement, and manual means for moving the weather strip to a locked or unlocked position, and means for locking the weather strip in locked or unlocked position.

6. ln a window construction, a. window easement having channels adjacent its inner and outer portions, a closure hingcdly mounted in the opening of the easement and having marginal flanges to interlock in said channels, combined locking member and weather strip carried by the closure and having a locking and camming engagement with certain of the inner channels for drawing the closure into an interlocked tight en gagement with the easement, and manual means -tor moving the weather strip to a locked or unlocked position, said means comprising an arm connected to one arm of the weather strip, a rotating rod mounted in bearings of the closure and carrying said arm for moving the weather strip to a locked or unlocked position, and means for locking the weather stripI in locked or unlocked position.

7. ln a window construction, a window easement having channels adjacent its inner and outer portions, a closure hingedly mounted in the opening of the easement and having marginal flanges to interlock in said channels, a combined locking member and .Weather strip carried by the closure and having a locking and camming engagement with certain of the inner channels for draw ing the closure into an interlocked tight engagement with the easement, and manual means for moving the Weather strip to a locked or unlocked position, and means for lockingthe Weather strip inlocked or unlocked position, said last mentioned means comprising a reciprocating ldetent member mounted in bearings of the sash, tensioning means Jor said detent member to hold the detent member in engagement With either of its opposite edges of the Weather strip to hold it in locked or unlocked position.

ing Weather strip, the Wall of the casement having a keeper channel to receive said Weather strip when the closure is closed, means for moving the Weather strip into and out of locked position, and means adapted to assume a position in the path of the Weather strip Whether in a locked or unlocked position, to hold it in either of its positions.

ln Witness whereof, in the presence of two Witnesses, the inventors signature is hereunto affixed.

GEORGE W. LANCASTER. Witnesses CHAs. U. WILLIAMS, Jr., R. E. Ho'rz'r. 

